Giant variable tho...   

Giant variable thorny oyster's description

Giant variable thorny oyster (Spondylus varius) is a species of large marine bivalve mollusc in the family Spondylidae. 

Found intertidal on dead corals. Depth estimate based on ecology. Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.

Giant variable thorny oyster's Feeding

Giant variable thorny oyster (Spondylus varius Sowerby) is a filter-feeder, using plankton as a food source.

Giant variable thorny oyster's Reproduction

Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.

Giant variable thorny oyster habitat

Coral Reef